Boots – shoes – and leggings
Patent
1989-02-22
1992-09-08
Lee, Thomas C.
Boots, shoes, and leggings
364DIG1, 3642384, 364244, 3642464, 3642543, 3642544, 3642461, 3649571, 3649572, 3649652, 3649663, 3649666, 3649667, G06F 1200, G06F 1310
Patent
active
051465817
ABSTRACT:
An apparatus for executing a subroutine and an interrupt processing routine of a bank switching scheme has a plurality of memory banks (4, 5, 6), a program for controlling bank switching being stored in the same address space (90) in each of the plurality of memory banks. When there is a necessity of switching the banks to the second memory bank (5) or (6) during the execution of a processing program in the first memory bank (4) to execute a subprogram, the bank switching control program in the first memory bank is called so that switching is performed from the first memory bank to the second memory bank, and the bank switching control program in the second memory bank is called. The subprogram is called in accordance with this bank switching control program in the second memory bank. After the execution of this subprogram is completed, the bank switching control program in the second memory bank is called again, so that switching is performed from the second memory bank to the first memory bank and the bank switching control program in the first memory bank is called. The return to the original processing program is made in accordance with the bank switching control program in the first memory bank. In the above described scheme, the necessity of efficiently utilizing a memory area and address matching of the processing program and the subprogram can be eliminated.
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Lee Thomas C.
Lim Krisna
Sanyo Electric Co,. Ltd.
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